Is CVE-2026-88264 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-88264 being exploited in the wild.

How severe is CVE-2026-88264?

Medium severity, with a CVSS score of 5.6, published 10 September 2026.

Which products and versions are affected?

Containers Crun 1.29.1 and earlier.

Is there a fix for CVE-2026-88264?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-88264 attacked?

It is attacked with local access.

Am I affected by CVE-2026-88264?

Check whether you run Containers Crun at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-88264: crun terminal setup path redirection vulnerability

CVE-2026-88264 · Severity: medium · CVSS 5.6 · Published 2026-09-10

crun is a lightweight container runtime used to execute containerized applications. A vulnerability in crun's terminal setup allows attackers to redirect /dev/console to attacker-controlled paths when container configurations do not mount /dev separately, potentially compromising container isolation and allowing unauthorized file access.

Technologies: Containers Crun. Vendors: Containers.

Quick answers

Is CVE-2026-88264 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-88264 being exploited in the wild.
How severe is CVE-2026-88264?: Medium severity, with a CVSS score of 5.6, published 10 September 2026.
Which products and versions are affected?: Containers Crun 1.29.1 and earlier.
Is there a fix for CVE-2026-88264?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-88264 attacked?: It is attacked with local access.
Am I affected by CVE-2026-88264?: Check whether you run Containers Crun at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is a path redirection flaw in crun's terminal setup logic. When a container configuration does not provide a dedicated mount for /dev, an attacker can redirect /dev/console to an attacker-controlled path, including via the read-only-rootfs bind-mount fallback mechanism. The attack requires a non-default container configuration; containers using default configurations with fresh /dev mounts are not affected. The vulnerability affects crun versions 1.29.1 and earlier, and no patched release is currently available.

Affected products

containers crun 1.29.1 and earlier

Timeline

2026-09-10: disclosed

References

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